Routing of Messages for Mobile Communication Devices During Emergency Calls
First Claim
1. A method implemented in a user equipment (UE), the method comprising:
- initiating non-access stratum (NAS) signaling in order to establish a connection between the UE and one of a plurality of core network (CN) elements;
determining whether the UE is already attached for emergency bearer services;
responsive to the UE being already attached for emergency bearer services, causing transmission, by a NAS layer of a protocol stack of the UE, of a UE identification (ID) when requesting a radio resource control (RRC) connection for further NAS signaling, wherein the UE ID comprises data which is used to determine to which CN of a plurality of CNs the connection should be directed.
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Accused Products
Abstract
A method implemented in a UE. NAS signaling is initiated or performed for an emergency call in order to establish a connection between the UE and one of a plurality of core networks (CNs). In a non-limiting example, the NAS signaling is initiated or performed after the ending of a prior established connection or emergency call. A determination is made whether the UE is already attached for emergency bearer services. Responsive to the UE being already attached for emergency bearer services, a NAS layer of a protocol stack of the UE causes transmission of a UE identification (ID) when requesting a radio resource control (RRC) connection for further NAS signaling. The UE ID includes data which can be used to determine to which CN of the plurality of CNs the connection should be directed.
59 Citations
34 Claims
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1. A method implemented in a user equipment (UE), the method comprising:
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initiating non-access stratum (NAS) signaling in order to establish a connection between the UE and one of a plurality of core network (CN) elements; determining whether the UE is already attached for emergency bearer services; responsive to the UE being already attached for emergency bearer services, causing transmission, by a NAS layer of a protocol stack of the UE, of a UE identification (ID) when requesting a radio resource control (RRC) connection for further NAS signaling, wherein the UE ID comprises data which is used to determine to which CN of a plurality of CNs the connection should be directed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method implemented in a user equipment (UE), the method comprising:
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deciding to request access to a network; determining whether a network component, to which access is made, should perform other network component or core network element selection; responsive to a UE determination that the network component should not perform other network component or core network element selection, providing an indicator, wherein the indicator comprises data that indicates to the network component that the network component should not independently perform other network component or core network element selection. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A user equipment (UE) comprising:
a processor configured such that the UE initiates non-access stratum (NAS) signaling in order to establish a connection between the UE and one of a plurality of core network (CN) elements;
wherein the processor is further configured such that the UE determines whether the UE is already attached for emergency bearer services, and wherein the processor is further configured such that the UE, responsive to the UE being already attached for emergency bearer services, causes transmission, by a NAS layer of a protocol stack of the UE, of a UE identification (ID) when requesting a radio resource control (RRC) connection for further NAS signaling, wherein the UE ID comprises data which is used to determine to which CN of a plurality of CNs the connection should be directed.- View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A user equipment (UE) comprising:
a processor configured such that the UE will decide to request access to a network, determine whether a network component, to which access is made, should perform other network component or core network element selection, and, responsive to a UE determination that the network component should not perform other network component or core network element selection, provide an indicator, wherein the indicator comprises data that indicates to the network component that the network component should not independently perform other network component or core network element selection. - View Dependent Claims (29, 30, 31, 32, 33, 34)
Specification